Equatorial Guinea launches offshore survey with TGS

Equatorial Guinea

OSLO, June 11, 2026 – TGS has signed an agreement with Equatorial Guinea’s Ministry of Hydrocarbon and Mining Development to create the country’s first offshore large-scale multi-client seismic dataset, the company said on Wednesday.

The first phase will involve the post-stack reprocessing of approximately 27,273 kilometres of 2D seismic data and around 35,000 square kilometres of 3D seismic data, with completion expected in Q3 2026. The project is the first stage of a broader initiative to develop a harmonised offshore seismic product covering Equatorial Guinea’s offshore basins, ultimately incorporating approximately 46,343 line kilometres of 2D data and more than 59,000 square kilometres of 3D data.

“The Equatorial Guinea MegaSurvey is the first of its kind in the country and will apply TGS’s latest imaging technology to address key subsurface challenges and support exploration risk reduction across the Rio del Rey and Rio Muni basins,” said David Hajovsky, TGS executive vice-president of multi-client.

By integrating and reprocessing legacy datasets into a consistent regional framework, the survey is expected to provide new insights that help identify and rank prospects, supporting informed exploration decision-making.

TGS is a Norway-based provider of energy data and intelligence for the global energy industry. The company offers seismic data, subsurface imaging, integrated data management and analytical solutions that support exploration and production activities across oil, gas and emerging energy sectors worldwide.

Photo courtesy of TGS

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